Jet fan hoisting structure

Abstract

The utility model discloses a jet fan hoisting structure, which belongs to the technical field of fan equipment installation, and is characterized in that a mounting plate with two ends fixedly connected with two side walls of a tunnel respectively is arranged below an expanding section of a tunnel top plate, so that a jet fan can be arranged on the mounting plate through a mounting component; and the jet fan is hoisted in the tunnel by utilizing the support of the mounting plate. The jet fan hoisting structure is simple in structure and convenient to construct, hoisting arrangement of the jet fan in a tunnel can be effectively achieved, the reliability and stability of arrangement and use of the jet fan are guaranteed, the problems of hoisting instability, falling and the like caused by long-term use of the jet fan are solved, and the safety of tunnel operation is fully guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan equipment installation, and in particular relates to a jet fan hoisting structure. Background Art

[0002] Jet fans are a special type of axial flow fans, which are mainly used in longitudinal ventilation systems of highway, railway and subway tunnels to provide full thrust. They can also be used in sensitive parts of semi-transverse ventilation systems or transverse ventilation systems, such as tunnel entrances and exits, to induce airflow or exhaust smoke.

[0003] According to the specific civil engineering conditions of different projects, the commonly used installation forms of jet fans are mainly side installation and hanging installation. Among them, hanging installation is an installation method in which the jet fan is suspended and installed on the tunnel vault. Because of its good ventilation effect and no additional horizontal civil engineering space, it is widely used in various tunnel structures. In general, the hanging installation of jet fans mainly adopts the installation method of welding or bolting the jet fan housing to the embedded steel plate in the tunnel vault with a connecting steel plate. Although this method can meet the needs of practical applications to a certain extent, it also has obvious defects. That is, with the long-term operation of the jet fan, the embedded steel plate, connecting steel plate, bolts and other connectors will inevitably be affected by factors such as fan operation vibration, tunnel wall seepage and corrosion, resulting in structural loosening and deformation, affecting the stability of the hoisting structure, and even causing the risk of the jet fan falling, which greatly affects the safety of tunnel operation. Utility Model Content

[0004] In response to one or more of the above defects or improvement needs of the prior art, the utility model provides a jet fan hoisting structure, which can ensure the reliability and stability of the jet fan hoisting setting, avoid problems such as shaking and falling of the jet fan, and ensure the safety of tunnel operation.

[0005] To achieve the above-mentioned purpose, the utility model provides a jet fan hoisting structure, which is arranged in the area where the diameter expansion section of the tunnel top plate is located, and includes a mounting plate arranged below the diameter expansion section;

[0006] The two ends of the mounting plate are respectively fixedly connected to the two side walls of the tunnel in the transverse direction, and the bottom surface of the mounting plate does not intrude into the vehicle limit in the tunnel;

[0007] A longitudinally penetrating installation space is formed between the installation plate and the expanded diameter section, so that at least one jet fan can be installed and assembled on the installation plate.

[0008] As a further improvement of the present invention, the mounting plate is arranged horizontally, and the bottom surface of the mounting plate does not protrude from the bottom surface of the conventional section of the tunnel roof.

[0009] As a further improvement of the present invention, the mounting plate is a prefabricated plate structure, which is assembled and connected to the tunnel after the tunnel is formed; and

[0010] Assembly connectors are preset on the end surfaces of the two tunnel side walls corresponding to the two ends of the mounting plate.

[0011] As a further improvement of the present invention, the mounting plate is a reinforced concrete structure integrally cast with the two tunnel side walls, and the steel bars in the mounting plate are tied and fixed to the steel bars in the two tunnel side walls.

[0012] As a further improvement of the present invention, a reinforcement member is further provided between the mounting plate and the diameter expansion section;

[0013] One end of the reinforcement is connected to the tunnel roof, and the other end thereof is connected to the mounting plate.

[0014] As a further improvement of the present invention, the reinforcement member is a plurality of reinforcement columns arranged at intervals or a longitudinally extending stiffening plate.

[0015] As a further improvement of the present invention, the reinforcement is a reinforced concrete structure, and the internal steel bars thereof extend to the interior of the tunnel top plate and are fixedly tied to the steel bars in the tunnel top plate.

[0016] As a further improvement of the utility model, the reinforcement is arranged in the longitudinal direction of the tunnel, and cavities for installing jet fans are formed on both sides of the reinforcement in the transverse direction.

[0017] As a further improvement of the present invention, the mounting assembly includes a plurality of connection plates preset on the mounting plate, and the base of the jet fan can be fixedly connected to the connection plates via a plurality of connectors.

[0018] As a further improvement of the present invention, the mounting assembly further comprises a vibration-damping support which can be arranged between the jet blower base and the connecting plate.

[0019] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0020] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0021] (1) The jet fan hoisting structure of the utility model is characterized by providing a mounting plate with two ends fixedly connected to the two side walls of the tunnel respectively under the expanded diameter section of the tunnel roof, so that the jet fan can be installed on the mounting plate through the mounting assembly, and the jet fan is hoisted and installed in the tunnel with the support of the mounting plate, thereby ensuring the reliability and stability of the jet fan hoisting and installation in the tunnel, avoiding the problem of loose connection or falling off that may exist in the traditional hoisting method, and fully ensuring the safety of tunnel operation.

[0022] (2) The jet fan hoisting structure of the utility model further improves the convenience and stability of the installation of the mounting plate by optimizing the connection method between the mounting plate and the two lateral walls of the tunnel. Specifically, by setting the mounting plate as a reinforced concrete structure integrally formed with the side wall, the integrity of the mounting plate with the tunnel structure after installation can be fully guaranteed, further improving the safety and reliability of the installation of the hoisting structure.

[0023] (3) The jet fan hoisting structure of the utility model, by setting the mounting plate as a prefabricated plate, allows the mounting plate to be connected to the tunnel side wall in a prefabricated assembly connection manner, thereby effectively simplifying the construction process of the mounting plate, improving the efficiency of tunnel structure construction, and reducing the construction workload of the hoisting structure.

[0024] (4) The jet fan hoisting structure of the utility model provides a reinforcement member between the mounting plate and the tunnel roof so that the load borne on the mounting plate can be stably transferred to the tunnel roof. The tunnel roof provides auxiliary support for the mounting plate and the jet fan on the mounting plate, further improving the reliability and stability of the hoisting structure.

[0025] (5) The jet fan hoisting structure of the utility model has a simple structure and is easy to construct. It can effectively realize the hoisting and installation of the jet fan in the tunnel, ensure the reliability and stability of the installation and use of the jet fan, avoid the problems of hoisting instability and falling caused by long-term use of the jet fan, and fully ensure the safety of tunnel operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a cross-sectional schematic diagram of the jet fan hoisting structure in the embodiment of the utility model;

[0028] Figure 2 It is a longitudinal sectional schematic diagram of the jet fan hoisting structure in the embodiment of the utility model;

[0029] Figure 3 It is a top view of the structure of the jet fan hoisting structure in the embodiment of the utility model;

[0030] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0031] 1. Tunnel roof; 101. Expansion section; 102. Conventional section; 103. Transition section; 2. Mounting plate; 3. Tunnel side wall; 4. Jet fan; 5. Mounting assembly; 6. Reinforcement. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] In the description of the present invention, it should be understood that, unless otherwise expressly specified and limited, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] Example:

[0038] See also Figure 1~Figure 3 The jet fan hoisting structure in the preferred embodiment of the utility model is used to realize the installation of the jet fan at the top of the tunnel. For the installation of the jet fan in the tunnel, whether it is top hoisting or side installation, it is necessary to expand the diameter at its installation position to form an installation space for the jet fan, so as to avoid the installed jet fan invading the vehicle limit and affecting the safe operation of the tunnel.

[0039] Therefore, for the jet fan hoisting structure arranged on the top of the tunnel in the preferred embodiment, the tunnel roof 1 at the jet fan installation position should be expanded, and the hoisting structure is just in the interval where the expanded diameter section 101 of the tunnel roof 1 is located.

[0040] Specifically, the expanded diameter section 101 of the tunnel roof 1 expands outwardly to a certain distance away from the tunnel floor, and is separated from the roof in the conventional section of the tunnel (i.e. Figure 2 The conventional segments 102 shown in FIG. 1 are connected by an inclined transition segment 103, such as Figure 2 as shown in .

[0041] At the same time, the hoisting structure in the preferred embodiment is arranged on the expanded diameter section 101 of the tunnel top plate 1, which includes a mounting plate 2 arranged below the expanded diameter section 101, and the two ends of the mounting plate 2 are respectively fixedly connected to the two tunnel side walls 3 in the transverse direction of the tunnel, so that the weight of the mounting plate 2 and the equipment arranged on the mounting plate 2 can be transferred to the two tunnel side walls 3 respectively, and the tunnel side walls 3 can realize reliable support for the mounting plate 2 and the jet fan 4 installed on the mounting plate 2, and the hoisting of the jet fan 4 on the top of the tunnel is realized by means of plate support.

[0042] In actual setting, the mounting plate 2 is preferably arranged horizontally, and an installation space for installing the jet fan 4 is formed between the mounting plate 2 and the intervally arranged expanded diameter sections 101 .

[0043] In more detail, in order to ensure the integrity of the mounting plate 2 with the tunnel structure after it is installed, in a specific preferred embodiment, the mounting plate 2 is preferably a reinforced concrete structure cast integrally with the two tunnel side walls 3. At this time, it is necessary to tie and fix the steel bars in the mounting plate 2 to the internal steel bars of the tunnel side walls 3 before casting the tunnel structure, and then cast the concrete to form it.

[0044] Of course, the above connection method is not the only setting method of the installation plate 2 in the tunnel in the utility model. In order to simplify the construction process of the tunnel and improve the construction efficiency of the tunnel structure and the jet fan hoisting structure, the installation plate 2 can also be preferably set as a prefabricated plate structure, which is prefabricated in the factory and can be directly transported to the construction site for installation. Accordingly, corresponding to the installation of the installation plate 2 in the tunnel, assembly connectors are preset on the two tunnel side walls 3.

[0045] In a specific preferred embodiment, the assembly connector on the tunnel side wall 3 is a pre-buried connection plate; accordingly, assembly connectors are also preset at both ends of the prefabricated plate structure.

[0046] In more detail, in order to reduce the deadweight of the prefabricated panel structure, the prefabricated panel structure in the preferred embodiment may be a metal plate of a certain thickness, with assembly connectors disposed at both ends of the metal plate.

[0047] Furthermore, no matter the mounting plate 2 is an integrally formed reinforced concrete plate or a prefabricated plate, it cannot intrude into the vehicle clearance in the tunnel after being installed in the tunnel.

[0048] In a preferred embodiment, the bottom surface of the horizontally arranged mounting plate 2 does not protrude from the bottom surface of the conventional section 102, and is further preferably flush therewith.

[0049] In order to further ensure that the mounting plate 2 reliably supports the jet fan 4, a reinforcement member 6 is preferably provided between the tunnel top plate 1 and the mounting plate 2, one end of which is connected to the tunnel top plate 1 and the other end is connected to the mounting plate 2, so that the load on the mounting plate 2 can be transferred to the tunnel top plate 1 through the reinforcement member 6.

[0050] Preferably, the reinforcement member 6 is arranged vertically, and its top is connected to the expanded diameter section 101 .

[0051] Furthermore, in actual configuration, the reinforcement member 6 may be a plurality of reinforcement columns disposed at intervals, or a stiffening plate extending longitudinally.

[0052] In a specific preferred embodiment, the reinforcement 6 is a plurality of reinforced concrete columns spaced longitudinally, and the internal reinforcements thereof extend to the interior of the tunnel roof 1 and are fixedly tied to the reinforcements in the tunnel roof 1. Of course, if the mounting plate 2 is a reinforced concrete structure, the reinforcements in the reinforcement 6 can also extend to the interior of the mounting plate 2 and be fixedly tied to the internal reinforcements in the mounting plate 2, thereby realizing the integral casting of the tunnel roof 1, the mounting plate 2, and the reinforcement 6, and fully ensuring the integrity of the hoisting structure.

[0053] like Figure 1 In the preferred embodiment shown in , the installation space is divided into two lateral areas by setting a reinforcement member 6. At this time, the jet fans 4 can be respectively set in the two areas to achieve side-by-side hoisting of the jet fans 4.

[0054] Furthermore, in order to realize the rapid installation of the jet fan 4 on the installation plate 2 , it is preferred that an installation component 5 is preset on the installation plate 2 .

[0055] In a preferred embodiment, the mounting assembly 5 includes a connection plate preset on the mounting plate 2, so that the base of the jet fan 4 can be quickly fixedly connected to the connection plate through a plurality of connectors, thereby realizing rapid lifting of the jet fan 4.

[0056] More preferably, in order to reduce the impact of vibration on the stability of the connection part during the use of the jet fan 4, a vibration-damping support is preferably also provided in the mounting assembly 5 to buffer the vibration during the use of the jet fan 4 and ensure the reliability of the connection between the jet fan 4 and the mounting plate 2.

[0057] More preferably, in order to ensure the reliability of the connection between the two ends of the mounting plate 2 and the tunnel side wall 3, the connection parts at both ends of the mounting plate 2 are preferably reinforced, for example, structural reinforcements are arranged at the bottom of both ends of the mounting plate 2, or the thickness of both ends of the mounting plate 2 is increased, or the connection part between the mounting plate 2 and the tunnel side wall 3 is set to a circular arc transition.

[0058] The jet fan hoisting structure in the utility model has a simple structure and is convenient to construct. It can effectively realize the hoisting and setting of the jet fan in the tunnel, ensure the reliability and stability of the setting and use of the jet fan, avoid the problems of hoisting instability and falling of the jet fan due to long-term use, and fully ensure the safety of tunnel operation.

[0059] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A jet fan hoisting structure, which is arranged in the area where the tunnel top plate expansion section is located, characterized in that: comprising a mounting plate disposed below the expanded diameter section; The two ends of the mounting plate are respectively fixedly connected to the two tunnel side walls in the transverse direction of the tunnel, and the bottom surface of the mounting plate does not intrude into the vehicle limit in the tunnel; A longitudinally penetrating installation space is formed between the installation plate and the expanded diameter section, so that at least one jet fan can be installed and assembled on the installation plate.

2. The jet fan hoisting structure according to claim 1, characterized in that: The mounting plate is arranged horizontally, and the bottom surface of the mounting plate does not protrude from the bottom surface of the conventional section of the tunnel roof.

3. The jet fan hoisting structure according to claim 1, characterized in that: The mounting plate is a prefabricated plate structure, which is assembled and connected to the two tunnel side walls after the tunnel is constructed; and Assembly connectors are preset on the end surfaces of the two tunnel side walls corresponding to the two ends of the mounting plate.

4. The jet fan hoisting structure according to claim 1, characterized in that: The mounting plate is a reinforced concrete structure integrally cast with the two tunnel side walls, and the steel bars in the mounting plate are tied and fixed to the steel bars in the two tunnel side walls.

5. The jet fan hoisting structure according to any one of claims 1 to 4, characterized in that: A reinforcement member is also provided between the mounting plate and the diameter expansion section; One end of the reinforcement is connected to the tunnel roof, and the other end thereof is connected to the mounting plate.

6. The jet fan hoisting structure according to claim 5, characterized in that: The reinforcement members are a plurality of reinforcement columns arranged at intervals or a longitudinally extending stiffening plate.

7. The jet fan hoisting structure according to claim 5, characterized in that: The reinforcement is a reinforced concrete structure, and the internal steel bars thereof extend to the interior of the tunnel top plate and are fixedly tied to the steel bars in the tunnel top plate.

8. The jet fan hoisting structure according to claim 5, characterized in that: The reinforcement is arranged in the longitudinal direction of the tunnel, and cavities for installing jet fans are respectively formed on both sides of the reinforcement.

9. The jet fan hoisting structure according to any one of claims 1 to 4 and 6 to 8, characterized in that: The mounting assembly includes a plurality of connection plates preset on the mounting plate, and the base of the jet fan can be fixedly connected to the connection plates via a plurality of connectors.

10. The jet fan hoisting structure according to claim 9, characterized in that: The mounting assembly also includes a vibration-damping support that can be arranged between the jet blower base and the connecting plate.

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